KR20230084427A - A Ultra Sonic Applier Having a Non-Sticking Coating Layer - Google Patents

Abstract

The present invention relates to an ultrasonic applier with a non-stick coating structure. The ultrasonic applier includes a rotatable base unit 11 relative to one side; a clip unit 12 coupled to the base unit 11 to fix the tissue portion to be cut; and a blade 13 that cuts the tissue fixed to the clip unit 12 by solidifying it with ultrasonic waves, and the part where the clip unit 12 or the blade 13 comes into contact with the tissue becomes a non-adhesive coating. .

Description

Ultrasonic Applier Having a Non-Sticking Coating Layer}

The present invention relates to an ultrasonic applier with a non-adhesive coating structure, and specifically, to an ultrasonic applier with a non-adhesive coating structure having a non-adhesive coating layer to prevent a part of a tissue from being adhered during the cutting process of a solidified body part. it's about

Laparoscopic surgery, in which a laparoscope equipped with a camera is inserted into the stomach without an abdominal incision, is generally applied to treat various diseases of the human body. In addition, an ultrasonic cutter may be used to cut a part of the body, such as the stomach or large intestine, during laparoscopic surgery. An ultrasonic cutter refers to a surgical tool for gripping a part of the body and transmitting ultrasonic waves to a cutting part to heat and cut the part. Ultrasonic cutting machines such as these are known in the art. Prior art related to ultrasonic cutting machines includes US Patent Registration No. US 6,893,434 'Ultrasonic soft tissue cutting and coagulation systems including a retractable grasper'. The prior art discloses an ultrasonic cutting machine comprising an ultrasonic transducer for generating ultrasonic waves, a gripping assembly connected to the transducer, and the gripping assembly including a blade part and gripping teeth movable relative to the blade part along an axial direction. do. Another prior art related to an ultrasonic cutting machine is US Patent Publication No. US 2007/0191713 'Ultrasonic Device for Cutting and Coagulating'. The prior art discloses an ultrasonic cutting machine composed of an ultrasonic waveguide, a blade connected to an end of the ultrasonic waveguide, a tissue pad, and a clamp member movable with respect to the blade. A known ultrasonic cutting machine or ultrasonic appler applies a method of coagulating tissue for cutting and then cutting. In this cutting process, a part of the tissue may be adhered to the blade of the apple liar, which causes the cutting to become unstable, or a part that does not need to be cut for surgery may be damaged. Therefore, it is necessary to make an ultrasonic applier capable of preventing damage due to adhesion of such tissues, but the prior art does not disclose such a method.

The present invention is to solve the problems of the prior art and has the following object.

Prior Document 1: US Patent Registration No. US 6,893,434 (Axya Medical, Inc; published on May 17, 2005) Ultrasonic Soft Tissue Cutting and Coagulation Systems Including a Retractable Grasper Prior Document 2: United States Patent Publication US 2007/0191713 (Stephen E. Eichmann et al.; published on August 16, 2007) Ultrasonic Device for Cutting and Coagulating

An object of the present invention is to provide an ultrasonic applier with a non-adhesive coating structure that prevents tissue from being adhered to the blade portion during the cutting process.

According to a preferred embodiment of the present invention, the ultrasonic applier of the non-stick coating structure is a rotatable base unit based on one part; a clip unit coupled to the base unit to fix the tissue portion to be cut; and a blade that cuts the tissue fixed to the clip unit by solidifying it with ultrasonic waves, and the portion where the clip unit or blade contacts the tissue becomes a non-adhesive coating.

According to another preferred embodiment of the present invention, the non-stick coating is at least one material from the first group consisting of polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), and perfluoroalkoxy (PFA), aluminum, titanium, silicon, ceramic, diamond , is formed by a mixture of at least one material selected from the second group consisting of boron and carbide.

According to another preferred embodiment of the present invention, it is formed on the clip unit 12 and further includes a pair of linear contact protrusions formed on the linear cutting groove and the linear cutting groove in which a part of the blade 13 is accommodated.

Ultrasonic Apple Liar with non-adhesive coating structure according to the present invention, the cutting area of the blade is non-adhesive coating so that the minimum area required for surgery is quickly cut during the surgical procedure. As a result, rapid recovery of the surgical site is possible by reducing damage to the tissue damage site while allowing the surgery to be performed quickly. The ultrasonic Apple Liar according to the present invention can be applied to various areas of surgery.

1 shows an embodiment of a cutting module applied to an ultrasonic applier of a non-stick coating structure according to the present invention.
Figure 2 shows an embodiment of the process of being cut by the ultrasonic applier according to the present invention.
Figure 3 shows an embodiment of the ultrasonic applier according to the present invention.
Figure 4 shows an embodiment of the non-adhesive coating structure applied to the ultrasonic applier according to the present invention.

Below, the present invention will be described in detail with reference to the embodiments presented in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so repeated descriptions are not made unless necessary for understanding the invention, and well-known components are briefly described or omitted, but the present invention It should not be understood as being excluded from the embodiment of.

1 shows an embodiment of a cutting module applied to an ultrasonic applier of a non-stick coating structure according to the present invention.

Referring to Figure 1, the ultrasonic applier of the non-adhesive coating structure is rotatable base unit 11 relative to one part; a clip unit 12 coupled to the base unit 11 to fix the tissue portion to be cut; and a blade 13 that cuts the tissue fixed to the clip unit 12 by solidifying it with ultrasonic waves, and the part where the clip unit 12 or the blade 13 comes into contact with the tissue becomes a non-adhesive coating. .

The ultrasonic apple liar according to the present invention can be applied to surgery of various human body parts including laparoscopic surgery, and can generate heat by transmitting ultrasonic waves to tissue parts of the surgical site. As heat is generated, the tissue portion to be cut is solidified and can be cut by the blade 13 . The base unit 11 may have a function of opening or closing the blade 13 while rotating while one part is fixed. The base unit 11 includes a fixed body 111 whose upper portion is generally flat-shaped; Coupling groove 112 formed along the center line of the extension direction of the fixed body 111; And it may include a rotation coupling unit 113 formed at one end of the fixed body 111. The clip unit 12 may be coupled to the top of the base unit 11 having such a structure. The clip unit 12 may function to fix a tissue portion to be cut or cut. The clip unit 12 includes a clip body 121 having a structure similar to that of the fixing body 111 as a whole; a fixed pattern unit 122 formed on an upper surface of the clip body 121; A fastening wing 123 formed at one end of the clip body 121; Linear cutting groove 124 formed along the center line of the extension direction of the clip body 121; and a pair of linear contact protrusions 125a and 125b formed to face each other along the extending direction of the linear cutting groove 124 . The upper surface of the clip body 121 has a flat shape as a whole so that tissue parts to be cut can be fixed, and the tissue parts are stably clipped by the fixed pattern unit 122 formed on the upper surface of the clip body 121. It may be fixed to the upper surface of the body 121. The fixed pattern unit 122 may be a protrusion or embossing shape protruding from the upper surface of the clip body 121, and the protrusion or embossing is a plurality of linear patterns inclined in both directions with respect to the linear cutting groove 124. may be formed, but is not limited thereto. The clip unit 12 may be firmly coupled to the base unit 12 by the fastening wings 123 . The linear cutting groove 124 may have a structure in which the lower portion of the blade 13 is accommodated, and may have, for example, a V or U-shaped cross section. The linear cutting groove 124 may have various structures to accommodate the lower portion of the blade 13 and cut the solidified tissue portion, but is not limited to the presented embodiment. A pair of linear contact protrusions 125a and 125b may be formed to extend along the linear cutting groove 124 . The pair of linear contact protrusions 125a and 125b face each other and extend in parallel, and the lower part of the blade 13 is inserted so that the blade 13 is stably guided and fixed. At the same time, the tissue part to be cut is safely cut by the blade 13. As shown on the right side of FIG. 1 , the pair of linear contact protrusions 125a and 125b may be formed to protrude into the linear cutting groove 124 so that the lower part of the blade 13 is inserted. A fastening protrusion 126 coupled to the coupling groove 112 may be formed at a lower portion of the clip body 121 to allow the clip unit 12 to be coupled to the base unit 11 . The clip unit 12 and the base unit 11 may be combined in various ways and are not limited to the presented embodiments.

The blade 13 includes, for example, an actuating coupling unit 131 connected to a part that controls an actuation such as an induction member; an induction cylinder 132 extending in a cylindrical shape from the operation coupling unit 131; And while one part is coupled to the induction cylinder 132 may include a contact cutter 134 extending in the shape of a coupling rod. The contact cutter 134 may have a polygonal cross-section and be extended, and a trapezoidal or triangular cutting portion 135 may be formed at a lower portion. Ultrasonic waves may be transmitted to the blade 13 , and heat may be generated as the ultrasonic wave transmitted to the blade 13 is transmitted to the tissue area, so that the contact area may be coagulated. Also, the solidified portion may be cut or cut by the cutting portion 135 . The clip unit 12 may be formed to have low thermal conductivity while being made of a synthetic resin material, a metal material, or a material similar thereto. In contrast, the blade 13 may be made of a metal material through which ultrasonic waves are easily transmitted, and may have high thermal conductivity. The tissue part can be fixed and cut between the clip unit 12 and the blade 13, and it is advantageous that the size of the tissue part to be coagulated and cut is reduced. During the cutting process, the cut peripheral portion may be adhered to the linear cutting groove 124 or the cutting portion 135 in a form of being pressed, and as a result, the peripheral portion of the cutting portion may be torn or torn. In order to eliminate this disadvantage, a non-adhesive coating layer may be formed on the surface of the linear cutting groove 124 or the blade 13 . For example, the upper surface of the linear cutting groove 124 or the clip body 121 may be coated with polytetrafluoroethylene (PTEF) or a similar fluorine-based synthetic resin. And the surface of the blade 13 or the outer surface of the contact cutter 135 is made of at least one material from the first group consisting of polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), and perfluoroalkoxy (PFA), aluminum, titanium, silicon, The coating may be a mixture of at least one material selected from the second group consisting of ceramic, diamond, boron and carbide. When a metal component or a material similar thereto is added to the blade 13 or the contact cutter 135, ultrasonic waves can be stably transmitted to the tissue site, and at the same time, heat can be transferred between the blade 13 and the tissue site. The coating on the blade 13, the contact cutter 135, or the linear cutting groove 124 may be formed by forming a coating layer or forming a film layer, but is not limited thereto. With such a coating, the cutting area can be minimized and the tissue area can be stably cut.

Below, a process in which cutting is performed by the cutting module having such a structure will be described.

Figure 2 shows an embodiment of the process of being cut by the ultrasonic applier according to the present invention.

Referring to FIG. 2 , the blade 13 and the clip unit 12 may be moved to a tissue site while being in contact with each other, and the cutting module may be connected to the ultrasonic operation unit 21 . The base unit 11 is rotated downward on the basis of the rotation coupling unit 113 to fix the tissue portion, and the tissue portion is positioned on the clip unit 12 in the state shown in FIG. 2 (b) and rotates again. By the rotation of the coupling unit 113, the tissue portion may be fixed between the blade 13 and the clip unit 12 as shown in (a) of FIG. 2 . In this state, ultrasound is transmitted to the blade 13 through the ultrasound operation unit 21, and the tissue may be coagulated due to heat generated by the transmission of the ultrasound. As solidification is performed, the solidified portion may be cut by the blade 13 . A cutting module having such a cutting structure can be applied to various ultrasonic appliers.

Figure 3 shows an embodiment of the ultrasonic applier according to the present invention.

Referring to Figure 3, the ultrasonic applier is a cutting module consisting of a base unit 11, a clip unit and a blade (13); an ultrasonic unit 31 that transmits ultrasonic waves to the blade 13; an operation guidance unit 32 for inducing operation of the base unit 11; an induction member 33 connected at one end to the operation guidance unit 32 and at the other end connected to the operation module; and an operation module for operating the ultrasonic unit 31 and the operation induction unit 32 . The operating module includes, for example, an operating body 36; a handle 37 formed on the operating body 36; a trigger 38 formed in front of the handle 37; a locking unit 34 for starting or stopping the operation of the operation induction unit 32; and a rotating unit 35 which moves the guide member 33 while being rotated by the operation of the trigger 38 so that the base unit 11 is operated. As the induction member 33 is moved according to the operation of the trigger 38, the base unit 11 is rotated so that the tissue part can be fixed to the cutting module. In addition, ultrasonic waves are generated by the operation of the operation button and transmitted to the blade 13 so that solidification and cutting can be performed. An ultrasonic generator for generating ultrasonic waves may be disposed in the ultrasonic unit 31 or disposed outside the operating body 36, and a limiting protrusion for limiting the rotation angle of the base unit 11 of the induction member 33 ( 331) can be formed.

The cutting module may be coupled to an ultrasonic applier having a variety of structures and is not limited to the presented embodiment.

Figure 4 shows an embodiment of the non-adhesive coating structure applied to the ultrasonic applier according to the present invention.

Referring to FIG. 4 , the contact cutter 134 may have a polygonal cross-section structure, and may preferably have a polygonal cross-section structure with a narrow lower portion. Specifically, a ceiling surface (134d) extending in a planar shape; guide surfaces 134c extending in a vertical direction from both edges of the ceiling surface; a contact surface 134b extending to be inclined from the guide surface 134c; and a contact surface 134a forming a bottom surface of the contact cutter 134 while connecting the ends of the cutting surfaces 134b facing each other. In addition, the linear contact protrusions 125a and 125b may have a polygonal or semicircular cross-section and may extend, and a sharp protrusion SP may be formed at a portion in contact with the blade 13 . At least a part of the blade 13, the linear cutting groove 124, or the linear contact protrusions 125a and 125b having such a structure may be coated with a non-stick coating. The linear cutting groove 124 and the blade 13 may be coated with a non-stick coating of different materials. For example, the linear cutting groove 124 may be coated with a material having low thermal conductivity, and the blade 13 may be coated with a material having high thermal conductivity. For example, the linear cutting groove 124 and the linear contact protrusions 125a and 125b may be coated with polytetrafluoroethylene or similar fluorine-based synthetic resin. In contrast, the blade 13 is made of at least one material of the first group consisting of PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene) and PFA (perfluoroalkoxy) and aluminum, titanium, silicon, ceramic, diamond, boron and carbide. It may be coated by a mixture of at least one material selected from the group 2. Alternatively, the blade 13 may include a base layer 41; conductive layer 43; and a coating layer 43 . The base layer 41 may be the blade 13, and the conductive layer 43 may be a thin film layer formed of a material having high thermal conductivity such as aluminum or copper. Also, a coating layer 43 may be formed on the conductive layer 43 with the above-mentioned material. The blade 13, the linear cutting groove 124, or the linear contact protrusions 125a and 125b may be coated in various ways and are not limited to the presented embodiment.

Although the present invention has been described in detail with reference to the presented embodiments above, those skilled in the art will be able to make various modifications and variations without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by these variations and modifications, but is limited only by the claims appended below.

11: base unit 12; clip unit
13: blade 21: ultrasonic operating unit
111: fixed body 112: coupling groove
113: coupling unit 121: clip body
122: fixed pattern unit 123: clamping wing
124: linear cutting groove 125a, 125b: linear contact protrusion
131: operating coupling unit 132: induction cylinder
134: contact cutter 135: cutting area

Claims (1)

In the ultrasonic appler,
A base unit 11 rotatable on one side;
a clip unit 12 coupled to the base unit 11 to fix the tissue portion to be cut;
a blade 13 that cuts the tissue fixed to the clip unit 12 by solidifying it with ultrasonic waves; and
A linear cutting groove 124 formed in the clip unit 12 and receiving a part of the blade 13 and a pair of linear contact protrusions 125a and 125b formed to face each other along the extending direction of the linear cutting groove 124 including,
The linear contact protrusions 125a and 125b have a polygonal cross section, and sharp protrusions SP are formed in contact with the blade 13,
The surfaces of the linear cutting groove 124 and the linear contact protrusions 125a and 125b are coated with polytetrafluoroethylene or fluorine-based synthetic resin, and the surface of the blade 13 is coated with PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene) and Characterized in that it is coated with a mixture of at least one material from the first group consisting of PFA (Perfluoroalkoxy) and at least one material selected from the second group consisting of aluminum, titanium, silicon, ceramics, diamond, boron and carbide. Ultrasonic applier with adhesive coating structure.

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